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Finding the Fourth Proportional to 77,386.40, 116,079.61 and 51,084.99

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Solution

The fourth proportional to 77,386.40, 116,079.61 and 51,084.99 is: 76,627.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,386.40 : 116,079.61 = 51,084.99 : x
  2. Step 2: Convert to fraction form
    77,386.40/116,079.61 = 51,084.99/x
  3. Step 3: Cross multiply
    77,386.40x = 116,079.61 × 51,084.99
  4. Step 4: Simplify right side
    77,386.40x = 5,929,925,460.63
  5. Step 5: Solve for x
    x = 5,929,925,460.63/77,386.40
  6. Step 6: Final answer
    x = 76,627.49

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.